Stamp



FIG. 1 is a perspective view of a stamp showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a plan view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the views are included for the purpose of illustrating portions of the stamp that form no part of the claimed design. 

CLAIM The ornamental design for a stamp, as shown and described. 